When to go · West Yellowstone
West Yellowstone in September
Great month. Inside West Yellowstone's best window: Jun–Sep for park access; Dec–Mar for snowcoach and snowmobile season.
Key facts
- Verdict
- Great
- Temperature
- 20°C (68°F)68°F (20°C) / 1°C (34°F)34°F (1°C)
- average high / low
- Rain days
- 7
- Crowds
- Medium
- United States overall
- Prices
- Medium
- United States overall
Verdict
Inside West Yellowstone's best window: Jun–Sep for park access; Dec–Mar for snowcoach and snowmobile season.
Is another month better than September?
No other month rates higher than September for West Yellowstone in this guide.
Weather in September
- West YellowstoneHighs around 20 °C (68 °F), lows around 1 °C (34 °F), rain on about 7 daysHighs around 68 °F (20 °C), lows around 34 °F (1 °C), rain on about 7 days
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Labor Day big impact
1st Monday of September · United States
End of summer; last big road-trip weekend.
Crowds and prices
- Crowds · United States overall
- Medium
- Prices · United States overall
- Medium
United States overall: After Labor Day the crowds drop and parks stay open; Florida and the Gulf are at hurricane peak.
Compare two months
Weather, crowds and prices for any two months in West Yellowstone, side by side.
Verdict
Sep: Great
Jan: Great
Daytime high
Sep: 20 °C (68 °F)68 °F (20 °C)
Jan: -2 °C (28 °F)28 °F (-2 °C)
Night low
Sep: 1 °C (34 °F)34 °F (1 °C)
Jan: -16 °C (3 °F)3 °F (-16 °C)
Rain days
Sep: 7 (better)
Jan: 10
Crowds
Sep: Medium
Jan: Low
Prices
Sep: Medium
Jan: Low
Festivals listed
Sep: 1
Jan: 0
September: Inside West Yellowstone's best window: Jun–Sep for park access; Dec–Mar for snowcoach and snowmobile season.
January: Inside West Yellowstone's best window: Jun–Sep for park access; Dec–Mar for snowcoach and snowmobile season.
West Yellowstone: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm coat, hat and gloves for mornings and evenings